Remove ImageData::dispose()

third_party/WebKit/Source/platform/heap/Handle.h

Index: third_party/WebKit/Source/platform/heap/Handle.h
diff --git a/third_party/WebKit/Source/platform/heap/Handle.h b/third_party/WebKit/Source/platform/heap/Handle.h
index 9aaa593522e4a1e9e9585f0accad5d2cd2bf643d..eb6516101cf3a74cb79363735e08ec55db2f6887 100644
--- a/third_party/WebKit/Source/platform/heap/Handle.h
+++ b/third_party/WebKit/Source/platform/heap/Handle.h
@@ -1019,30 +1019,6 @@ public:
     using Type = Member<T>;
 };
 
-// Abstraction for injecting calls to an object's 'dispose()' method
-// on leaving a stack scope, ensuring earlier release of resources
-// than waiting until the object is eventually GCed.
-template<typename T, void (T::*Disposer)() = (&T::dispose)>
-class ScopedDisposal {
-    STACK_ALLOCATED();
-public:
-    ScopedDisposal(T* object)
-        : m_object(object)
-    {
-    }
-
-    ~ScopedDisposal()
-    {
-        if (m_object)
-            (m_object->*Disposer)();
-    }
-
-    void clear() { m_object.clear(); }
-
-private:
-    typename RawPtrOrMemberTrait<T>::Type m_object;

[sof, 2016/04/16 05:25:16]

This was/is the sole use of this trait.

ftr, I don't mind keeping both around; templates with no particular costs
attached and these are (conceivably) general purpose tools for the toolbox.

-};
-
 // SelfKeepAlive<Object> is the idiom to use for objects that have to keep
 // themselves temporarily alive and cannot rely on there being some
 // external reference in that interval: